第 0585 号，共 1 402 张

Eastern hognose snake

Heterodon platirhinos

名字的由来： The name comes from Greek. Heterodon means "different tooth", and platirhinos means "broad or flat snout".1

无害对人无害。不用担心。

后沟牙蛇

咬伤吃：肉

对人的危险: 轻微像被蜜蜂蜇一下或更轻。对人基本无害。

The eastern hognose snake is a stout, rear-fanged snake that lives across eastern and central North America. It has an upturned snout, which it uses for digging in sandy soil. It is mildly venomous, but its venom is aimed at toads and frogs and is not deadly to people.1

生活在

Eastern and central North America, from southern Ontario and southern New Hampshire to Texas, Kansas and southern Florida1

北美洲

首页

It prefers dry places with sandy or loose soil, such as upland sandy pine forests, old fields and forest edges. At the northern end of its range it has been found to prefer developed lands.1

长度

1.2 m (3.8 ft)1

最高速度

约 4.9 公里/小时（3 英里/小时）

在陆地上, 粗略估计

它吃什么？

It eats mainly amphibians and has a particular fondness for toads. It uses its enlarged rear teeth to puncture and deflate toads before swallowing them whole.1

Eastern hognose snake的照片 — Eastern hognose snake。照片：evangrimes。 CC BY 4.0, iNaturalist.

怎样认出它

Stout body with an upturned snout1
Colour varies widely by area, from red, green or orange to brown, grey or black, sometimes blotched, checkered or plain1
Belly is usually a solid grey, yellow or cream colour1
The underside of the tail is lighter than the belly1
Adults average 71 cm in total length, and females are larger than males1

毒液之力

咬伤

它咬的时候，毒液通过毒牙或牙齿出来。

它的毒液会造成什么？

Its venom is mild and is adapted to amphibian prey. It is delivered through enlarged rear teeth from the Duvernoy's gland. In people who are allergic to the snake's saliva, a bite can cause local swelling, burning, discolouration and bleeding from the wound.1

它对人有多危险？

对人的危险: 轻微像被蜜蜂蜇一下或更轻。对人基本无害。

The venom is harmless to most people, and no human deaths have been documented. People who are allergic to its saliva may have local symptoms such as swelling and bleeding.1

它害怕时会做什么？

It flattens its neck, raises its head like a cobra, hisses and strikes with a closed mouth to bluff. If that fails, it rolls onto its back, plays dead, releases a foul musk and lets its tongue hang out.1

如果它咬人

清洗咬伤处，让人保持冷静并就医。有些种类（比如非洲树蛇）可能几小时后才致命。

一定先拨打你的急救电话（112、000、911）。这里是一般急救指导，不是医疗建议。急救基础

注意安全

永远不要摸、抓或逗弄野生动物，即使是很小的，即使它看起来在睡觉或已经死了。
给它留出空间。如果遇到它，保持冷静，慢慢后退，让它走自己的路。
如果被它咬了：保持冷静，保持不动，拨打你的急救电话（112、000、911）或尽快去医院。记住它长什么样，拍张照片会有帮助。

它不是冲着你来的。它用毒液捕猎或保护自己，而且它更愿意躲起来。更多安全知识

在世界哪里？

非洲亚洲欧洲北美洲南美洲澳大利亚和大洋洲

它有多大？

它有多长？

和 2.5 只家猫鼻子接尾巴一样长和 6 根香蕉首尾相接一样长73 秒就能跑完 100 米（最快的人需要 9.6 秒）

Eastern hognose snake和你比起来有多大？

只是在你的浏览器里算一算。什么都不会被保存或发送到任何地方。

它有多快？

一只陆龟 约 0.3 公里/小时 (0.19 mph)

Eastern hognose snake 约 4.9 公里/小时 (3 mph)

一个在走路的人 约 5 公里/小时 (3.1 mph)

值得了解

事实

One individual was seen playing dead for 45 minutes before moving away.1

It is resistant to the skin poisons of toads, probably because of its enlarged adrenal glands, which release large amounts of hormones to counter the toxins.1

When threatened, it often bluffs by striking with its mouth closed, and it does not try to bite.1

It is a rear-fanged snake, and its enlarged teeth are at the back of the upper jaw.1

Females can store sperm until spring, so they can be fertilised later.1

谣言粉碎机

谣言： The eastern hognose snake is a dangerous, deadly snake.

真相： It is only mildly venomous, and its venom is aimed at amphibians. No human deaths have been documented, although some people who are allergic to its saliva may have local symptoms.1

给毒液专家

学名: Heterodon platirhinos
类别: 后沟牙蛇
家人: Colubridae2
排序: Squamata
大洲: 北美洲
宝宝: Females lay up to 40 eggs, with an average of about 25, usually in June or early July. The hatchlings are about 16.5 to 21 cm long.1
它在野外过得怎么样: Least concern (IUCN Red List, assessed 2007). It is a species of increasing conservation concern in the northeastern part of its range.1
对人的危险: 1 / 5: 轻微3